#include <QCoreApplication>
#include <iostream>
using namespace std;
int main()
{
    double proizvedenie = 1.0;
    unsigned int n;

    cout << "vvedite nomer: ";
    cin >> n;

    for (double i=1, j=1.1; i<=n; i++, j+=0.1)
        proizvedenie = proizvedenie * j;

    cout << proizvedenie << endl;

    return 0;
}
